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The low-resolution imaging spectrograph red channel CCD upgrade: fully depleted, high-resistivity CCDs for Keck

2010; SPIE; Volume: 7735; Linguagem: Inglês

10.1117/12.856818

1996-756X

Constance M. Rockosi, Richard Stover, Robert I. Kibrick, Chris Lockwood, M. C. Peck, D. Cowley, Michael Bolte, Sean M. Adkins, Barry Alcott, S.L. Allen, Blain Brown, Gerald Cabak, William Deich, David F. Hilyard, Marc Kassis, Kyle Lanclos, Jeff Lewis, Terry Pfister, Andrew Phillips, L. B. Robinson, M.C Saylor, Mark G. Thompson, Jennifer E. Ward, Wei Mao, Christopher Wright,

Stellar, planetary, and galactic studies

A mosaic of two 2k x 4k fully depleted, high resistivity CCD detectors was installed in the red channel of the Low Resolution Imaging Spectrograph for the Keck-I Telescope in June, 2009 replacing a monolithic Tektronix/SITe 2k x 2k CCD. These CCDs were fabricated at Lawrence Berkeley National Laboratory (LBNL) and packaged and characterized by UCO/Lick Observatory. Major goals of the detector upgrade were increased throughput and reduced interference fringing at wavelengths beyond 800 nm, as well as improvements in the maintainability and serviceability of the instrument. We report on the main features of the design, the results of optimizing detector performance during integration and testing, as well as the throughput, sensitivity and performance of the instrument as characterized during commissioning.